George c



(No Model.)

- G. C. WESTERVELT.

PLOW.

No, 484,129. Patented Oct. 11, 1892.

UNITED STATES PATENT OFFICE.

GEORGEy C. W'ESTERVELT, OF SOUTH BEND, INDIANA.

PLOW.

SPECIFICATION forming part of Letters Patent No. 484,129, dated October11, 1892.

Application iiled June 7, 1892. Serial No. 435,822. (No model.) I

To alZZ whom it may concern.-

Beit known that I, GEORGE C. WESTER- VELT, a citizen of the UnitedStates of America, residing at South Bend, in the county of St. Josephand State of Indiana, have invented certain new and useful Improvementsin Plows, of which the following` is a specifica-v tion, reference beinghad therein to the accompanying drawings and the letters of referencethereon, forming a part of this specification, in which- Figure l is aside view of the plow; and Fig. 2 is a detached view of the shaft,showing its auger divided, so as to form blades similar topropeller-blades.

This invention relates to certain improvements in plows, and pertainsmore particularly to the mold-board, consisting of a rotating screw orscrew-blades, which improvements are fully set forth in the following`specification and claims.

Referring to the drawings, A is the standard.

B is the beam. l

C are handles secured to the beam and standard in the Ordinar)T manner.

D is a colter secured to the plow-beam and braced to the standard andhaving ak box formed in its rear part to receive the end Of shaft S,which is boxed in said standard, and has on its part between thestandard and colter the screw E, which takes the place of a moldboard.The rear end of said shaft is provided with abevel-gear H, which isdriven by means of the bevel-gear G on the spur drive-wheel F, boxed instandard J and adapted to travel in the furrow behind the standard.

R is a beam-wheel for sustaining the outer end of the beam and forpreventing the plow from running too deep in the earth.

The principal new feature in this invention is in the use of the screwF, either in the form of an auger, as shown in Fig. l, or in the form ofseparate auger-shaped blades,

as shown in Fig. 2, in place of an ordinary mold-board for turning thefurrow or stirring up the earth and pulverizing it.

In operation as the plow advances the colter enters the earth ahead ofthe shaft S and its auger mold-board. The spur drive-wheel F as ittravels` in the furrow behind the standard rotates the shaft S and theaugerblades E through the medium of' the bevelgears G H and Acauses thesaid auger-blades or mold-board to thoroughly cut and tear up the groundand invert it, the same as an ordinary mold-board, but pulverizes itmuch more thoroughly than an ordinary mold-board will and with lessfriction' and draft on a team.

I do not confine myself to the precise form of vthe auger or screwshaped mold-board shown or to the precise method of driving or rotatingit, being more desirous of covering the principle of Aapplying the screwor auger to a plow for the purpose specified, rather than a stationarymold-board;

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is as follows, to wit:

1. In a plow, the combinationof the standard and colter and the shafthaving the auger or screw mold-board and `means for rotating saidmold-board, substantially'asand for the purpose Set forth.

2. In a plow, the combination of the standard A, haviuga journal-boxshaft S fitting said journal-box and having the bevel-gear l-I and augeror screw blade E, colter D, having a` box for receiving the forward endof said shaft, and spur drive-wheel F, having bevelgear G for drivingsaid shaft, substantially as and for the purpose set forth.

GEORGE C. WESTERVEL'F.

Witnesses:

FRANK M. BOONE, JACOB D. HENDERSON.

